From this article in the online version of the UK's Daily Telegraph (http://www.news.com.au/dailytelegraph/story/0,22049,23105747-5001021,00.html?from=public_rss), apparently, Jake is as distraught as you imagine a best friend would be.
I didn't know that Jake was Matilda's (Heath's daughter's) godfather, but, besides her mom, another of Heath's Brokeback co-stars, Michelle Williams, at least this little girl has Jake to help her to remember her father.
In the local online newspaper for Heath's hometown of Perth, The West Australian, his family remembered him as ''the most amazing 'old soul' in a young man's body.''
They went on to say,
Heath's older sister, Kate, wrote that, in trying to create a tribute to her famous brother, she could ''hardly breathe''. ''We were the ultimate soul mates,'' she said, and added "You were so many things to so many people, but to me you were just my little brother."
"As a close knit and very private family we have observed you so determined yet quietly travelling in your self-styled path in life, nothing would get in your way ... no mountain too tall, no river too wide.
"You dreamed your dreams and lived them with passion and intelligent commitment.
"We have been privileged to accompany you on a ride through life that has simply been amazing and through it all we have loved each other beyond imagination."
As difficult as this continues to be for Heath's fans around the world, how beyond sad & beyond tragic this must all be for those who knew & loved him most.
The article from The West Australian can be found here http://www.thewest.com.au/aapstory.aspx?StoryName=454282